Fiche d'espèce de Copépode
Calanoida ( Ordre )
    Pseudocyclopoidea ( Superfamille )
        Pseudocyclopidae ( Famille )
            Pseudocyclops ( Genre )
Pseudocyclops constanzoi  Baviera, Crescenti & Zagami, 2007   (F)
Ref.:
Baviera, Crescenti & Zagami, 2007 (p.571, Descr.F, figs.F)
Espèce Pseudocyclops constanzoi - Planche 1 de figures morphologiquesIssued from : C. Baviera, N. Crescenti & G. Zagami in Crustaceana, 2007, 80 (5). [p.572, Fig. 1].
Female (from Faro lake, NE Sicily): A, habitus (dorsal); B, pedigerous somites 2-5 and genital double-simite (lateral); C, A1 (lateral); D, A2 endopod (lateral ) with exopod position indicated by arrow.

Nota:
- Prosome compact, oval in dorsal view.
- Rostrum with large base, fused to cephalon, protruding ventrally.
- A1 with 17 segments, armature element setae and aesthetascs as follow: 13 + 3a; 2; 2; 4; 2; 2; 2; 3; 2; 2; 2; 2; 2; 2; 4; 2; 5+ 2a.
- Cephalosome and 1st pegiger somite separate, 4th and 5th pediger somites separate.
- 2nd pediger somite with ventrolateral posterior corner produced into acute process.
- 4th and 5th pediger somites with pointed epimeral margins dorsolaterally.
- 5th pediger somite characterized by a tooth visible in lateral view.
- Urosome 4-segmented.
- Genital double-somite symmetrical, with gonopore and copulatory pore opening in common longitudinal slit on ventral side and with postero-ventral edge denticulate.
- 2nd urosomal somite with denticulate edge around posterior margin.
- 3rd urosomal somite with posterior hyaline frill and with distal margin denticulate;
- Anal somite very small, without ornamentation, almost telescoped into 3rd somite.
- Caudal ramus bearing 6 setae, sera II spiniform and seta V longest.


Espèce Pseudocyclops constanzoi - Planche 2 de figures morphologiquesIssued from : C. Baviera, N. Crescenti & G. Zagami in Crustaceana, 2007, 80 (5). [p.573, Fig. 2, A-D].
Female: A, Md (lateral); B, Mx1 (lateral); C, Mx2 (lateral); D, Mxp (lateral).
Scale bar for all figures.

Nota:
- A2 biramous, coxa and basis clearly separate, both bearing 1 seta; endopod 3-segmented, 1st segment with 2 setae, 2nd segment with 8 setae, 3rd segment with 7 setae apically; exopod of both sides were lost.
- Md with cutting edge of gnathobase bearing 7 cuspidate teeth; palp biramous, basis with 2 setae, endopod bearing 4 setae on 1st segment and 10 setae on distal margin of 2nd segment; exopod 4-segmented bearing 1, 1, 1, 3 setae, respectively.
- Mx1 well developed; praecoxal arthrite bearing 9 strong spines and 5 submarginal slender serae; coxal endite with 3 setae; coxal epipodite with 6 setae; basis with 1 short seta (representing exite), 4 setae each on proximal and distal endites; endopod bearing a total of 16 setae; exopod bearing 11 setae along disto-lateral margin.
- Mx2 with praecoxa proximal endite bearing 5 long setae and 1 rudimentary element, distal endite with 3 setae; both coxal endites with 3 setae. Basis and 1st endopodal segment fused to form allobasis, bearing 7 setae; endopod reduced, indistinctly segmented bearing 7 setae.
- Mxp with syncoxa bearing 1, 2, 3 setae representing praecoxal and coxal endites; basis with 3 setae on proximal margin and 2 setae on distal margin, derived from incorporated 1st endopodal segment. Endopod 5-segmented, 1st and 2nd segments each bearing 4 setae; 3rd segment with 3 setae, 4th segment with 3 inner and 1 outer setae, 5th segment with 4 setae.


Espèce Pseudocyclops constanzoi - Planche 3 de figures morphologiquesIssued from : C. Baviera, N. Crescenti & G. Zagami in Crustaceana, 2007, 80 (5). [p.573, Fig. 2, E, F].
Female: E, P1 (anterior); F, P2 (anterioir).
Scale bar for E and F.


Espèce Pseudocyclops constanzoi - Planche 4 de figures morphologiquesIssued from : C. Baviera, N. Crescenti & G. Zagami in Crustaceana, 2007, 80 (5). [p.575, Fig. 3].
Female: A, P3 (anterior); B, P4 (anterior); C, P5 (anterior).

Nota: P5 with unarmed coxa; basis with an acute process on inner margin; exopod and endopod with 3 and 2 segments, respectively; 1st exopodal segment bearing 1 spine, 2nd segment with 1 spine and 1 seta, 3rd segment with 3 spines, a setiform spine and 2 setae; 1st endopodal segment with 1 plumose seta, 2nd segment bearing 2 distal plumose setae, located between 2 lateral processes and ornamented with 2 rows of spinules on the posterior side


Espèce Pseudocyclops constanzoi - Planche 5 de figures morphologiquesIssued from : C. Baviera, N. Crescenti & G. Zagami in Crustaceana, 2007, 80 (5). [p.574].
Female: Spine and setal formula of swimming legs P1 to P4.
Spine : Roman numerals; setae: Arabic numerals.

Ref. compl.:
Belmonte, 2018 (p.273, Table I: Italian zones)
NZ: 1

Carte de distribution de Pseudocyclops constanzoi par zones géographiques
Loc:
W Medit. 38°16'N, 15°38'E (Faro Lake, Sicily)
N: 2
Lg.:
(972) F: 0,591; {F: 0,591}
Rem.: Merci à mon collègue brésilien Gabriel Bittencourt Farias d'avoir attirer mon attention sur quelques oublis concernant ce genre et certaines espèces.
Voir aussi les remarques en anglais
Dernière mise à jour : 06/02/2020

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Razouls C., Desreumaux N., Kouwenberg J. et de Bovée F., 2005-2021. - Biodiversité des Copépodes planctoniques marins (morphologie, répartition géographique et données biologiques). Sorbonne Université, CNRS. Disponible sur http://copepodes.obs-banyuls.fr [Accédé le 30 novembre 2021]

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